From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sfi-mx-4.v28.ch3.sourceforge.com ([172.29.28.124] helo=mx.sourceforge.net) by h25xhf1.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1Ky2NH-0007sb-Pf for user-mode-linux-devel@lists.sourceforge.net; Thu, 06 Nov 2008 10:46:03 +0000 Received: from yx-out-1718.google.com ([74.125.44.158]) by 1b2kzd1.ch3.sourceforge.com with esmtp (Exim 4.69) id 1Ky2ND-0000t3-H3 for user-mode-linux-devel@lists.sourceforge.net; Thu, 06 Nov 2008 10:46:03 +0000 Received: by yx-out-1718.google.com with SMTP id 3so200673yxi.82 for ; Thu, 06 Nov 2008 02:45:58 -0800 (PST) Message-ID: <804dabb00811060245t2dcae77bkcbba0156b9002c6d@mail.gmail.com> Date: Thu, 6 Nov 2008 18:45:57 +0800 From: "Peter Teoh" MIME-Version: 1.0 Content-Disposition: inline Subject: [uml-devel] How to avoid stopping at gdb's "Program received signal SIGSEGV, Segmentation fault"? List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: uml-devel When I run gdb ./linux (my UML-compiled kernel): (gdb) run ubda=/mnt/hd1/download/FedoraCore5-x86-root_fs mem=128M The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /mnt/hd0/download/linux-2.6-latest/uml/linux ubda=/mnt/hd1/download/FedoraCore5-x86-root_fs mem=128M Locating the bottom of the address space ... Program received signal SIGSEGV, Segmentation fault. 0x080664ff in page_ok (page=) at /mnt/hd0/download/linux-2.6-latest/arch/um/os-Linux/sys-i386/task_size.c:31 31 n = *address; The flow keep stopping at the following message: Program received signal SIGTRAP, Trace/breakpoint trap. And I have to "next" many many times....the execution flow continue as per normal. But I would like to ignore the breakpoint trap, how? (It is not a breakpoint by itself) Execution flow continues normally can be deduced because when I enter "bt" I can see the stacktrace anytime: (gdb) bt #0 0x00556c2b in __i686.get_pc_thunk.bx () from /lib/ld-linux.so.2 #1 0x0054a8f8 in _dl_lookup_symbol_x () from /lib/ld-linux.so.2 #2 0x0054eac2 in _dl_fixup () from /lib/ld-linux.so.2 #3 0x00554260 in _dl_runtime_resolve () from /lib/ld-linux.so.2 #4 0x08066526 in page_ok (page=) at /mnt/hd0/download/linux-2.6-latest/arch/um/os-Linux/sys-i386/task_size.c:33 #5 0x08066607 in os_get_top_address () at /mnt/hd0/download/linux-2.6-latest/arch/um/os-Linux/sys-i386/task_size.c:100 #6 0x0804a232 in linux_main (argc=3, argv=0xbffb46f4) at /mnt/hd0/download/linux-2.6-latest/arch/um/kernel/um_arch.c:277 #7 0x0804ad16 in main (argc=3, argv=0xbffb46f4, envp=0xbffb4704) at /mnt/hd0/download/linux-2.6-latest/arch/um/os-Linux/main.c:150 -- Regards, Peter Teoh ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel